Optical scanner



FIG. 1 is a top front right perspective view;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a right bottom perspective view thereof;

FIG. 5 is a left front perspective view thereof;

FIG. 6 is a bottom front perspective view thereof; and,

FIG. 7 is a top perspective view thereof. 

I claim the ornamental design for an optical scanner, as shown and described. 